Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude
Abstract The audible noise (AN) of HVDC transmission lines, as an external manifestation of the corona discharge, intensifies with the increase of altitude. In high‐altitude area, the AN has been a key factor in determining the type of conductors for transmission lines. In order to study the charact...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-08-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12832 |
| _version_ | 1797756523553751040 |
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| author | Luxing Zhao Li Xie Chao Liu Lei Gao Jia Qu Hengzhi Zhang Yingyi Liu |
| author_facet | Luxing Zhao Li Xie Chao Liu Lei Gao Jia Qu Hengzhi Zhang Yingyi Liu |
| author_sort | Luxing Zhao |
| collection | DOAJ |
| description | Abstract The audible noise (AN) of HVDC transmission lines, as an external manifestation of the corona discharge, intensifies with the increase of altitude. In high‐altitude area, the AN has been a key factor in determining the type of conductors for transmission lines. In order to study the characteristics of corona current and AN of HVDC transmission lines at high‐altitude, we erected a HVDC test line at an altitude of 4300 m, and carried out AN and corona current tests under different voltages. Through the test, the basic data of AN and corona current of HVDC test line at high‐altitude were obtained. Based on the corona current curve, the corona inception electric field strength of the conductor was proposed. The relationship between the equivalent A‐weight sound level and the high‐frequency noise component was clarified. The relational expression of the AN and corona current for the HVDC test line were suggested. The research results show that, there is a relatively fixed difference of about 7–8.3 dB between the equivalent A‐weight sound level and the 8 kHz sound pressure level at altitude 4300 m, and a clear logarithmic relationship between the equivalent A‐weight sound level and the average value of the corona current. |
| first_indexed | 2024-03-12T18:01:43Z |
| format | Article |
| id | doaj.art-ae8adf13ec74484e9424a766fd4e31d3 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-03-12T18:01:43Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-ae8adf13ec74484e9424a766fd4e31d32023-08-02T09:58:22ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-08-0117153399340910.1049/gtd2.12832Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitudeLuxing Zhao0Li Xie1Chao Liu2Lei Gao3Jia Qu4Hengzhi Zhang5Yingyi Liu6High Voltage Department China Electric Power Research Institute Co., Ltd. Beijing ChinaHigh Voltage Department China Electric Power Research Institute Co., Ltd. Beijing ChinaElectric Power Research Institute State Grid Tibet Electric Power Co., Ltd. Lhasa ChinaElectric Power Research Institute State Grid Tibet Electric Power Co., Ltd. Lhasa ChinaNaqu Power Supply Company State Grid Tibet Electric Power Co., Ltd. Naqu ChinaElectric Power Research Institute State Grid Tibet Electric Power Co., Ltd. Lhasa ChinaSchool of Automation Science and Electrical Engineering Beihang University Beijing ChinaAbstract The audible noise (AN) of HVDC transmission lines, as an external manifestation of the corona discharge, intensifies with the increase of altitude. In high‐altitude area, the AN has been a key factor in determining the type of conductors for transmission lines. In order to study the characteristics of corona current and AN of HVDC transmission lines at high‐altitude, we erected a HVDC test line at an altitude of 4300 m, and carried out AN and corona current tests under different voltages. Through the test, the basic data of AN and corona current of HVDC test line at high‐altitude were obtained. Based on the corona current curve, the corona inception electric field strength of the conductor was proposed. The relationship between the equivalent A‐weight sound level and the high‐frequency noise component was clarified. The relational expression of the AN and corona current for the HVDC test line were suggested. The research results show that, there is a relatively fixed difference of about 7–8.3 dB between the equivalent A‐weight sound level and the 8 kHz sound pressure level at altitude 4300 m, and a clear logarithmic relationship between the equivalent A‐weight sound level and the average value of the corona current.https://doi.org/10.1049/gtd2.12832audible noisecorona currentcorrelationequivalent A‐weight sound levelhigh‐altitudetest line |
| spellingShingle | Luxing Zhao Li Xie Chao Liu Lei Gao Jia Qu Hengzhi Zhang Yingyi Liu Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude IET Generation, Transmission & Distribution audible noise corona current correlation equivalent A‐weight sound level high‐altitude test line |
| title | Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude |
| title_full | Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude |
| title_fullStr | Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude |
| title_full_unstemmed | Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude |
| title_short | Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude |
| title_sort | corona current and audible noise characteristics of hvdc transmission lines and their relationship at high altitude |
| topic | audible noise corona current correlation equivalent A‐weight sound level high‐altitude test line |
| url | https://doi.org/10.1049/gtd2.12832 |
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